日本免费一区尤物-日本免费在线视频-日本免费在线一区-日本免费中文字幕在线看-日本嫩小xxxxhd-日本欧美成

dual liquid silicone low pressure molding
Two-Component Liquid Silicon Introduction

      Two-component liquid silicon consists of two parts, A and B, which are flowable. The B component contains platinum catalyst or other auxiliary, two components need to be mixed together in a certain proportion into the heated mold to solidify. It can be cured at room temperature or cured faster by higher temperature.

      Two-component liquid silicon is generally divided into two categories: condensation type and addition type. The condensation type has poor adhesion to the components and the encapsulated cavity, and the low molecular substance will be released in the curing process. Therefore, the condensation type has obvious shrinkage in the curing process, while the addition type has almost no shrinkage. For electronic products, addition type liquid silicon is generally used, combined with special two - component liquid silicon equipment and rapid vulcanization of colloids under the condition of heating.

Two-component liquid silicon features:

1. Flame retardant: up to grade UL94-V0.

2. High tensile and high anti - tearing, not easy to deform.

3. It is not restricted by product thickness and can be vulcanize to a great depth.

4. Shrinkage is less than one thousandth, no low molecular produced, high accuracy.

5. Good fluidity and easy potting, can be cured at room temperature or cured by heating.

6. Can be adjusted to low viscosity for smaller components or for small gaps in the component.

7. It can be specially adjusted to be transparent or non-transparent according to customer requirements. 

8. Food grade non-toxic and tasteless. Comply with FDA food certification and SGS environmental materials certification.

9. Excellent chemical resistance, corrosion resistance, yellowing-resistant, thermal stability and weather resistance (service temperature -60℃--250℃).   

Two-component liquid silicon specification

Specification

Color

Transparent and non-transparent (multiple colors)

A、B ratio

1:1~10:1

Part A viscosity(10000CPS)

8.5—9

Operable time(25℃/min)

20-60

Cure time 60℃-150℃/Min

15~3

Potting temperature(℃)

75~160

Density(g/m3)

0.9~1.5

Viscosity(cps)

1800~3200

Hardness(JIS A)

30~50

Elongation(%)

300-650

Tearing strength(KN·m-1)

≥20

Thermal conductivity [W(m·K)]

≥0.2

Dielectric strength(kV/mm)

≥25

Dielectric constant(1.2MHz)

3.0~3.3

Flammability rating

94-V1

Note: different specifications of the silicon can be adjusted according to customer demand. Includes different viscosity, color transparency hardness, etc. 

主站蜘蛛池模板: 国产精品视频一区二区三区不卡 | 国产suv精品一区二区四区三区 | gav男人天堂 | 久久91精品牛牛 | 国产在线一区二区三区欧美 | 国产床上视频 | 日日摸夜夜搂人人要 | 日日网站 | 555夜色555亚洲夜色 | 亚洲精品国产第一区第二区国 | 久热中文字幕在线精品首页 | 久久中文字幕免费 | 国产一区亚洲二区三区毛片 | 久久久久国产亚洲日本 | 亚洲精品永久www嫩草 | 老司机在线精品视频91免费观看 | 91拍拍在线观看 | 高清免费毛片 | 日韩欧美福利 | 久久久国产一区二区三区 | 青青国产在线观看 | 国产系列欧美系列日韩系列在线 | 国产大陆老老太老头性视频 | 国产片91| 久久美女免费视频 | 毛片一区 | a级黄视频 | 四虎国产精品4hu永久 | 女bbwxxxx视频 | 天天综合亚洲国产色 | 国产欧美日韩亚洲精品区2345 | 夜夜爽天天干 | xxxwww在线观看视频 | 丁香婷婷色综合亚洲小说 | 狠狠色噜噜狠狠狠 | 久久www免费人成精品 | 99这里只有精品66视频 | 男女男免费视频网站国产 | 青青草社区 | 97久久免费视频 | 99色吧|